Question about JBL GTO75.4 Car Audio Amplifier

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Amp cutting out, intermittent fault

My gto75.4 keeps cutting out.The blue LED flashes but as it flashes the red LED dims. (like flashing alternatively but not)
When i measure the voltage it goes from 12.5v down to 8 then up again & down again & up again keeps alternating.Like the amp is in constant reset.there is a little popping noise from the speakers aswel.
Any thoughts
I have checked the battery & alternator & they are fine????????
Please help as i'm gonna have to buy another one...

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Re: Amp cutting out, intermittent fault

I suggest using a 4 gauge or smaller i had the same problem. i switched from 8 to 4 and no problems!

Posted on Sep 29, 2008

Re: Amp cutting out, intermittent fault

Perhaps you have a ground loop problem. Try using a audio isolation transformer. I had this problem on my home stereo system where my powered sub woofer and amplifier were creating a ground loop.

Posted on Aug 27, 2008

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Re: Amp cutting out, intermittent fault

What guage of wire are you using to feed ur amp power? maybe its not getting enough power that's why its behaving like that,it sound like the power is breaking down when called for.

Posted on Dec 05, 2007

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